Guahan Web

This plugin uses the Flickr RESTful API to retrieve the specified number of images for the specified user for display in 
the sidebar of your WordPress blog. The display of the widget is customizable by defining the title as well as the number 
of rows and the number of images per row.

Guahan Flicker Widget

This widget will allow you to display your newest Flickr images easily in your sidebar.

Robert Peake

Robert

Embeds a responsive slideshow of Flickr images from any album or photoset
Shortcodes are of the format: <code>[fshow url=https://flic.kr/s/aHsiP3Xyxx]</code> or <code>[fshow photosetid=72157627847553181]</code>
The default parameters for api key, username, user_id and photosetid can have values set using the plugin options page that will then be used by default whenever they are omitted from the shortcode.

Responsive Flickr Slideshow

Does the trick

Embeds a responsive slideshow of Flickr images from any album or photoset

Guahan Flicker Widget vs Responsive Flickr Slideshow